Electric water heater



May/ 31 1927- E, c. STEERE ELECTRIC WATER HEATER Filed Nov. 19, 1925 2757- .Z j? [j -Z fwg 5 JV;- a /1 257 25,5:

K Y l INVENTOR:

R T'ToRNEYs.

Patented May 31, 1927. Y 1,630,9l

UNHTE ERNEST CHARLES STEERE, F SYDNEY, NEW SG'U'LF. WALES. AUSTRALIA.

ELECTREC VIATEB. HEATER.

Application filed November 19, 1925, Serial No. 69,981, and in Australia December 16, 1924.

rlhis invention relates to means for heatthe leads otl the heating element 19 and ing water contained in a vessel such as an with the leading in wires 29-29 which enter urn, juO, or the like or for continuous or through an aperture in an exterior cover 31 intermittent supply of heated water to a oi the container. rllhis cover is secured to large container such as a bath and consists the container by suitable studs and nuts in the provision ot an electrically insulating The lid 18 is adapted to be locked in posicasing formed of porcelain or other suitable tion by an offset bar 33 the ends of which are (so insulating material which is iitted with a retained by cross parallel bars which suspended heating element and means for are bolted to the container by the bolts of the l0 detachably mounting the casing within a stil-rups 23. A locking bolt 30 provided container, the construction being such that with a lock nut is threaded through the bar a high electrical resistance is established be- 33 and engages a metal washer on the lid 1S. o5 tween the heating element and the water in- When water iills the casing the water let and outlet ports. in the passage ways 21-22 'furnishes a water l5 The walls ot the casing are slotted or holed column oi high electrical resistance between to permit free .admission of and escape of the heating element 19 and the ends oi' the water from the casing and are adapted for casing so that the user of the device is et 70 direct connection with water service and defectively protected. livery pipes. l claim.

20 n the accompanying drawings: 1. Een electrical water heater, comprising Figure 1 is a sectional elevation of a tubua water container, a hollow casing mounted lar casing mounted in an electrically insulatin said container, a heating element disposed 75 ing water container; within said casing, said casing having open Figure 2 is a sectional elevation on the tubular portions in communication with the line 2-2'01:j Fig. 1.` container at opposite ends ot the heating Figure 3 is a sectional plan on the line element whereby the latter is exposed to a 3 3 of Fig. 1. continuous circulation of water passing S0 Anfelectrioally insulating water container through said casing, the relative disposition 10 is provided with a detachable cover plate of said heating element and tubular portions 3o 11 serving as an expansion chamber in which being such as to provide a water column or" is mounted a delivery pipe 12. A flange 13 high electr'cal resistance between the heaton the container permits attachment of the ing element and the ends or" the casing. cover by means of bolts 14, and a water tight 2. An electrical water heater, comprising joint is formed by means of a rubber or a water container, an elongated casing similar gasket 15. The lower portion of one mounted in said container and having a cenof the walls or" the container is iitted with 2L tral chamber and tubular portions extending Water inlet pipe 16, and a central portion oit' from opposite ends of said chamber into 90 one of the walls 17 is removed to permit the communication with the container, and a insertion of the lid 18 and the heating eleheating' element disposed within said cham- 40 ment 19 of an electrically insulating CaS- ber in alinement with said tubular portions ing 20. whereby the heating element is exposed to The casing 2O is constructed oi any known a continuous circulation of water passing 95 form of electrical insulating material such through said casing and a water column of as porcelain, and is preferably provided with high electrical resistance is formed between a central chamber and tubular portions 21, the heating element and the ends of the cas- 22, extending from opposite ends oi` said ing. chamber. The casing is clamped to the conJ S. in electrical water heater, comprising 100 tainer 10 by means ot stirrups 23, and a a water container, an elongated casing havwater tight and insulating joint is formed ing a central chamber and tubular portions by a rubber gasket 24. extending trom opposite ends of said cham- The lid 18 of the casing carries terminals ber, means for removably supporting the 25, 26 and a water tight and insulating asing within the container, the tubular por- 105 gasket 27. T he terminals are connected with tions of said casing being in communication with said container, and a heating element removably supported Within the chamber of said easing and insulated therefrom and fIOni the eontai1ier,-saicl heating element rbeing disposed in alinernent with the tubular portions of the easing whereby the heating element 1s exposed to a continuous circulation ERNEST CHARLES STEERE. 

